Si827x Data Sheet

4 Amp ISOdriver with High Transient (dV/dt) Immunity

The Si827x isolators are ideal for driving power switches used in a wide variety of power

supply, inverter, and motor control applications. The Si827x isolated gate drivers utilize

Silicon Laboratories' proprietary silicon isolation technology, supporting up to 2.5

kVRMS withstand voltage per UL1577 and VDE0884. This technology enables industry

leading common-mode transient immunity (CMTI), tight timing specifications, reduced

variation with temperature and age, better part-to-part matching, and extremely high reli-

ability. It also offers unique features such as separate pull-up/down outputs, driver shut-

down on UVLO fault, and precise dead time programmability. The Si827x series offers

longer service life and dramatically higher reliability compared to opto-coupled gate driv-

ers.

The Si827x drivers utilize Silicon Labs' proprietary silicon isolation technology, which

provides up to 2.5 kVRMS withstand voltage per UL1577 and fast 60 ns propagation

times. Driver outputs can be grounded to the same or separate grounds or connected to

a positive or negative voltage. The TTL level compatible inputs with >400 mV hysteresis

are available in individual control input (Si8271/2/3/5) or PWM input (Si8274) configura-

tions. High integration, low propagation delay, small installed size, flexibility, and cost-

effectiveness make the Si827x family ideal for a wide range of isolated MOSFET/IGBT

and SiC or GaN FET gate drive applications.

Automotive Grade is available for certain part numbers. These products are built using

automotive-specific flows at all steps in the manufacturing process to ensure the robust-

ness and low defectivity required for automotive applications.

KEY FEATURES

• Single, dual, or high-side/low-side drivers

• Single PWM or dual digital inputs

• High dV/dt immunity:

• 200 kV/µs CMTI

• 400 kV/µs Latch-up

• Separate pull-up/down outputs for slew

rate control

• Wide supply range:

• Input supply: 2.5–5.5 V

• Driver supply: 4.2–30 V

• Very low jitter of 200 ps p-p

• 60 ns propagation delay (max)

• Dedicated enable pin

• Silicon Labs’ high performance isolation

technology:

• Industry leading noise immunity

• High speed, low latency and skew

• Best reliability available

• Compact packages:

• 8-pin SOIC

• 16-pin SOIC

• QFN-14 (pin to pin compatible with

LGA-14 packages)

• Wide temperature range:

• –40 to 125 °C

• AEC-Q100 Qualified

• Automotive-grade OPNs available

• AIAG compliant PPAP documentation

support

• IMDS and CAMDS listing support

Industrial Applications

• Switch-mode Power Supplies

• Solar Power Inverters

• Motor control and drives

• Uninterruptible Power Supplies

• High-Power Class D Amplifiers

Safety Regulatory Approvals

• UL 1577 recognized

• Up to 2500 Vrms for 1 minute

• CSA component notice 5A approval

• IEC 60950-1 (reinforced insulation)

• VDE certification conformity

• VDE 0884 Part 10

• CQC certification approval

• GB4943.1

Automotive Applications

• On-board chargers

• Battery management systems

• Charging stations

• Traction inverters

• Hybrid Electric Vehicles

• Battery Electric Vehicles

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1. Ordering Guide

Table 1.1. Si827x Ordering Guide

Ordering

Part Number

Inputs Driver

Configuration

Output

UVLO

Integrated

Deglitcher

Dead Time

Adjustable

Range

Low

Jitter

Package Isolation

Rating

Products Available Now

Si8271AB-IS VI Single 5 N N/A Y SOIC-8 NB 2.5 kVrms

Si8271BB-IS VI Single 8 N N/A Y SOIC-8 NB 2.5 kVrms

Si8271DB-IS VI Single 12 N N/A Y SOIC-8 NB 2.5 kVrms

Si8271GB-IS VI Single 3 N N/A Y SOIC-8 NB 2.5 kVrms

Si8273AB-IS1 VIA/VIB HS/LS 5 N N/A Y SOIC-16 NB 2.5 kVrms

Si8273ABD-IS1 VIA/VIB HS/LS 5 Y N/A N SOIC-16 NB 2.5 kVrms

Si8273AB-IM1 VIA/VIB HS/LS 5 N N/A Y QFN-14 2.5 kVrms

Si8273ABD-IM1 VIA/VIB HS/LS 5 Y N/A N QFN-14 2.5 kVrms

Si8273DB-IS1 VIA/VIB HS/LS 12 N N/A Y SOIC-16 NB 2.5 kVrms

Si8273DBD-IS1 VIA/VIB HS/LS 12 Y N/A N SOIC-16 NB 2.5 kVrms

Si8273GB-IS1 VIA/VIB HS/LS 3 N N/A Y SOIC-16 NB 2.5 kVrms

Si8273GBD-IS1 VIA/VIB HS/LS 3 Y N/A N SOIC-16 NB 2.5 kVrms

Si8273BB-IS1 VIA/VIB HS/LS 8 N N/A Y SOIC-16 NB 2.5 kVrms

Si8273BBD-IS1 VIA/VIB HS/LS 8 Y N/A N SOIC-16 NB 2.5 kVrms

Si8274AB1-IS1 PWM HS/LS 5 N 10-200 Y SOIC-16 NB 2.5 kVrms

Si8274AB4D-IS1 PWM HS/LS 5 Y 20-700 N SOIC-16 NB 2.5 kVrms

Si8274AB1-IM1 PWM HS/LS 5 N 10-200 Y QFN-14 2.5 kVrms

Si8274AB4D-IM1 PWM HS/LS 5 Y 20-700 N QFN-14 2.5 kVrms

Si8274BB1-IS1 PWM HS/LS 8 N 10-200 Y SOIC-16 NB 2.5 kVrms

Si8274DB1-IS1 PWM HS/LS 12 N 10-200 Y SOIC-16 NB 2.5 kVrms

Si8274GB1-IS1 PWM HS/LS 3 N 10-200 Y SOIC-16 NB 2.5 kVrms

Si8274GB4D-IS1 PWM HS/LS 3 Y 20-700 N SOIC-16 NB 2.5 kVrms

Si8274GB1-IM1 PWM HS/LS 3 N 10-200 Y QFN-14 2.5 kVrms

Si8274GB4D-IM1 PWM HS/LS 3 Y 20-700 N QFN-14 2.5 kVrms

Si8275GB-IS1 VIA/VIB Dual 3 N N/A Y SOIC-16 NB 2.5 kVrms

Si8275GBD-IS1 VIA/VIB Dual 3 Y N/A N SOIC-16 NB 2.5 kVrms

Si8275AB-IM1 VIA/VIB Dual 5 N N/A Y QFN-14 2.5 kVrms

Si8275ABD-IM1 VIA/VIB Dual 5 Y N/A N QFN-14 2.5 kVrms

Contact Silicon Labs Sales for These Options

Si8271ABD-IS VI Single 5 Y N/A N SOIC-8 NB 2.5 kVrms

Si8271BBD-IS VI Single 8 Y N/A N SOIC-8 NB 2.5 kVrms

Si827x Data Sheet

Ordering Guide

silabs.com | Building a more connected world. Rev. 1.0 | 2